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Finding the Fourth Proportional to 630,587.16, 870,228.63 and 344,125.67

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Solution

The fourth proportional to 630,587.16, 870,228.63 and 344,125.67 is: 474,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,587.16 : 870,228.63 = 344,125.67 : x
  2. Step 2: Convert to fraction form
    630,587.16/870,228.63 = 344,125.67/x
  3. Step 3: Cross multiply
    630,587.16x = 870,228.63 × 344,125.67
  4. Step 4: Simplify right side
    630,587.16x = 299,468,006,000.79
  5. Step 5: Solve for x
    x = 299,468,006,000.79/630,587.16
  6. Step 6: Final answer
    x = 474,903.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.